Yixing City Kam Tai Refractories Co.,ltd
Yixing City Kam Tai Refractories Co.,ltd Professional Manufacturer of Refractory Kiln furniture and Technical Ceramic
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1. Description
Alumina ceramic part is made from the most mature of the engineering ceramics, offering excellent electrical insulation properties together with high hardness and good wear resistance, but relatively low strength and fracture toughness. Alumina ceramics are generally white but may also be pink or ivory. The color is derived from either the sintering additives or impurities in the raw materials.
2.Advantages:
3.Performance
| Items | Unit | 95%Al2O3 | 99.5%Al2O3 |
| Density | g/cm3 | 3.7 | 3.9 |
| Flexural Strength | MPa | 313 | 340 |
| Compressive Strength | MPa | 3400 | 3600 |
| Modulus of Elasticity | GPa | 350 | 380 |
| Impact Resistance | MPa·m1/2 | 4 | 5.1 |
| Weibull Modulus | m | 10 | 10 |
| Vickers Hardness | HV0.5 | 1800 | 1900 |
| Thermal Conductivity | W/mk | 24 | 27 |
| Highest Application Temperature | °C | 1600 | 1750 |
| Volume Resistivity at 20°C | Ω.cm20 | >1014 | >1014 |
| Dielertric strength | KV/mm | 20 | 25 |
| Thermal expansion | X10-6/K | 5.0-8.3 | 5.4-8.3 |
